class Dog 
{
	int size;
	String name;
	
	void bark(){
		if (size > 60) {
			System.out.println("Woof ! Wooof!");
		} else if (size > 14){
			System.out.println("Ruff ! Ruff!");
		} else {
			System.out.println("Yip! Yip!");
		}
	}
	public static void main(String[] args) 
	{
	}
}
